This engine serial number location is found on the rocker coverk, and in some cases, printed on the side of the gear housing.

 

These can be found on the rocker housing located on the fuel pump side.

 

Located on the top cover of the rocker level.

 

The ISC and ISL engine data plates are located on the top side of the gear housing.

 

These engine serial numbers are found on both a metal tag fixed to the front gear housing and also etched on the left side of the block just above the oil cooler housing.

 

4BT Cummins engine serial numbers are found on the metal tag fixed to the front gear housing, as well as the rear left side near to the oil cooler housing.

 

This data plate is visible on the front left side of the gear cover and can also be found on the rear of the block.